When Astrid, a professional therapist struggling to find meaningful friendships, starts having an affair with her patient Céline's husband, it puts a strain on an already difficult relationship with her son, David. Meanwhile, Céline, a former prostitute content with her domesticated life, befriends David when he tries to run away from home by booking a flight through her travel agency. When David discloses the affair to Céline, she must decide how to deal with the betrayal and lies.
